Jessie H.wrote a review of Trango Regulock HMS Carabiner on November 25, 2015
Familiarity: I've used it several times
I bought a pair of these screw-lock caribiners for the main anchor point where the rope passes through on my top rope and rappel anchors. I have used the setup many times with two different ropes, as well as used one for a rappel. The generous opening is nice. I also really like the bright colors because it is easy to see them for a last anchor check and harder to lose them!
The screw lock slides well without issue and the gate opens without catches. The smooth, higher-diameter body is what I look for in my master-point caribiners. This is not super light, but it feels solid, which is my preference when I am not carrying it up a wall.